Sound — ZXNet «zx.spectrum»

From Dmitry Belichenko To All 10 June 1997

Good evening/night/morning to you All!

I took an old Sinclair (Leningrad 48) from the shelf, but it had no sound
Where should I solder it, otherwise you won’t find circuits for such archaism during the day?

... system time of year 23:37 ...

From Alex Kovrigin To All 14 June 1997

Hello Dmitry,
In a message dated 10 Jun 97 you wrote to All:

DB> I took an old Sinclair (Leningrad 48) from the shelf, but it had no sound
DB> Where to solder it, otherwise you won’t find circuits for such archaism during the day with fire?

To the second leg of the mikruhi 555TM9 (it seems to be the only one on the board, near the ROM).

__
__/// /With/ /Best/ /Regards/ 39:245/1.0@amiganet
\XX/ /Alex/ /Kovrigin/ 2:5000/28.19@fidonet

From Alex Letaev To All 15 June 1997

What exactly are you interested in? If there is a beeper, then one of the outputs (2
leg) goes from TM9, usually to the KT315 transistor, and then through 27 ohms to the speaker. The second end
of the speaker is +5 volts. If something is wrong in the diagram, write it down! (the most frequently used connection is shown).

Regards, Alex from FFC COMPUTERS.